The author concludes that it’s sometimes environmentally preferable to buy non-locally produced food than to buy locally produced food. This is because the distance that food travels makes up only a small part of the food’s environmental impact. And, some locations allow production of certain foods with far less environmental impact. For example, maybe coffee production in South America causes less damage to the environment than coffee production in North America. In this case, getting coffee from South America might be less damaging than getting it from North America, even if North American coffee is local.

The referenced text is the view that the author rejects.